Detecting positron-atom bound states through resonant annihilation.


A method is proposed for detecting positron-atom bound states by observing enhanced positron annihilation due to electronic Feshbach resonances at electron-volt energies. The method is applicable to a range of open-shell transition-metal atoms which are likely to bind the positron: Fe, Co, Ni, Tc, Ru, Rh, Sn, Sb, Ta, W, Os, Ir, and Pt. Estimates of their binding energies are provided.

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@article{Dzuba2010DetectingPB, title={Detecting positron-atom bound states through resonant annihilation.}, author={V. A. Dzuba and Victor V. Flambaum and G . F . Gribakin}, journal={Physical review letters}, year={2010}, volume={105 20}, pages={203401} }